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Grade 7. CH 4 HEAT.

Total questions: 17

Worksheet time: 8mins

Name
Class
Date
1.

which thermometer is used to measure temperature of an object?

a)

clinical thermometer

b)

laboratory thermometer

c)

maximum minimum thermometer

2.

is 38°C normal temperature of human body?

a)

false

b)

true

3.

which mode of heat transfer is this?

a)

conduction

b)

convection

c)

radiation

4.

is air a poor conductor of heat?

a)

yes

b)

no

5.

temperature is measured with a device called

(a)  

6.
Where does the initial source of energy come from that creates winds?
a)
the moon
b)
the sun
c)
the Earth's surface
d)
the rotation of the Earth
7.

______________ is the mode of heat transfer in liquids and gases

a)

Conduction

b)

Radiation

c)

Convection

8.

The Fahrenheit scale ranges from

a)

92 degree to 108 degree

b)

94 degree to 106 degree

c)

94 ml to 108 degree

d)

94 degree to 108 degree

9.

which of the following is to check weather ?

a)

laboratory thermometer

b)

maximum - minimum thermometer

c)

clinical thermometer

10.

temperature is measured in

(a)  

11.
  1. The temperature scale that has lower fixed point 0 degree celsius and the upper fixed point at 100 degree celsius is called
a)

Kelvin scale

b)

Celsius scale

c)

Absolute scale

d)

Fahrenheit scale

12.

Ventilation in rooms is due to

a)

Conduction

b)

Convection

c)

Radiation

d)

All of the three

13.
what is the meaning of conduction
a)
when heat transfers from objects that are not touching
b)
heat rise 
c)
cold fall
d)
when heat transfers from objects that are touching
14.
what kind of heat is happening when the sun heats your body
a)
conduction
b)
convection
c)
density
d)
radiation
15.
A group of friends gather around a fire to stay warm.
a)
conduction
b)
convection
c)
radiation
16.
The man goes to take the hot pot off the stove with his bare hands.
a)
conduction
b)
convection
c)
radiation
17.
Warm air rises and the cool air sinks.
a)
conduction
b)
convection
c)
radiation